| Tail Number / N-Number | N5597N |
| Manufacturer | HOFFMAN EDWARD C. |
| Model | X4 |
| Year Built | 1980 |
| Manufacturer's Serial Number | 1 |
| Aircraft Type | Fixed wing single engine |
| Category | Sea |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | HOFFMAN EDWARD C |
| Street | 216 GEORGE ST S |
| City | TARPON SPRINGS |
| State | FL |
| Zip Code | 34688-8615 |
| Region | Southern |
| County | Pinellas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1981-01-12 |
| Certificate Issue Date | 2011-11-09 |
| Last Action Date | 2020-06-14 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 51622064 |
| Mode S Code Hex | A72434 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N5597N.
| Tail Number / N-Number | N5597N |
| Manufacturer | BOEING |
| Model | E75 |
| Manufacturer's Serial Number | 75-8134 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 93 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MCNABB JOEL E |
| Street | PO BOX 25 |
| City | MANVEL |
| State | TX |
| Zip Code | 77578 |
| Region | Southwestern |
| County | Pinellas County |
| Certificate Issue Date | 1954-10-19 |
| Last Status | Valid Registration |
| Cancellation Date | 1972-02-25 |